نتایج جستجو برای: 5cool climate with uncomfortable conditionbetween

تعداد نتایج: 9277389  

Journal: :Technology in Society 2021

Frugal innovation (FI) has been getting growing attention from scholars, practitioners, and policymakers for its promise to serve low-income customers with affordable solutions. As a recently emerged concept, it explored different perspectives. We know the positive side of but negative remained unexplored. To gain holistic understanding, is important develop balanced knowledge topic. Hence, thi...

Journal: :Boletim da Biblioteca da Universidade de Coimbra 2016

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی عمران 1392

abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...

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